Graft copolymerization of methylmethacrylate with N-substituted maleimide-styrene copolymer by ATRP

Cakir T., Serhatli I., ONEN A.

JOURNAL OF APPLIED POLYMER SCIENCE, vol.99, no.5, pp.1993-2001, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 99 Issue: 5
  • Publication Date: 2006
  • Doi Number: 10.1002/app.22013
  • Journal Name: JOURNAL OF APPLIED POLYMER SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1993-2001
  • Istanbul Technical University Affiliated: Yes

Abstract

Atom transfer radical polymerization (ATRP) was employed to prepare graft copolymers having poly(MBr)alt-poly(St) copolymer as backbone and poly(methyl methacrylate) (PMMA) as branches to obtain heat resistant graft copolymers. The macroinitiator was prepared by copolymerization of bromine functionalized maleimide (MBr) with styrene (St). The polymerization of MMA was initiated by poly(MBr)-alt-poly(St) carrying bromine groups as macroinitiator in the presence of copper bromide (CuBr) and bipyridine (bpy) at 110 degrees C. Both macroinitiator and graft copolymers were characterized by H-1 NMR, GPC, DSC, and TGA. The ATRP graft copolymerization was supported by an increase in the molecular weight (MW) of the graft copolymers as compared to that of the macroinitiator and also by their monomodal MW distribution.